linux-kernel - Re: [PATCH] usb: gadget: uvc: Add H264 frame format support

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Message-ID: <2024071054-anatomist-purchase-1e98@gregkh>
Date: Wed, 10 Jul 2024 13:51:44 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Akash Kumar <quic_akakum@...cinc.com>
Cc: Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
	Jing Leng <jleng@...arella.com>, Felipe Balbi <balbi@...nel.org>,
	Jack Pham <quic_jackp@...cinc.com>, kernel@...cinc.com,
	Wesley Cheng <quic_wcheng@...cinc.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Daniel Scally <dan.scally@...asonboard.com>,
	Vijayavardhan Vennapusa <quic_vvreddy@...cinc.com>,
	Krishna Kurapati <quic_kriskura@...cinc.com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: gadget: uvc: Add H264 frame format support

On Mon, Jul 08, 2024 at 09:43:28AM +0530, Akash Kumar wrote:
> Add support for framebased frame format which can be used to support
> multiple formats like H264 or H265 other than mjpeg and YUV frames.
> 
> Framebased format is set to H264 by default, which can be updated to
> other formats by updating the GUID through guid configfs attribute.
> 
> Signed-off-by: Akash Kumar <quic_akakum@...cinc.com>
> ---
>  drivers/usb/gadget/function/uvc_configfs.c | 570 ++++++++++++++++++---
>  drivers/usb/gadget/function/uvc_configfs.h |  34 +-
>  drivers/usb/gadget/function/uvc_v4l2.c     |  80 ++-
>  include/uapi/linux/usb/video.h             |  62 +++
>  4 files changed, 638 insertions(+), 108 deletions(-)

DOn't you need to add the new configfs entries to Documentation/ABI/?

And how is anyone going to know about this new api or format if there
are not new files?  WHere is it now documented?

thanks,

greg k-h